Barnes and Noble Inc. released its tablet computer \"Nook Tablet\" on Tuesday, according to Reuters reports. The tablet computer is said to replace the Barnes and Noble Nook, which was named after the brand of an e-book reader developed by the American book retailer Barnes and Noble Inc. According to Reuters, it is priced at 249 U.S. dollars, dearer than Amazon\'s Kindle Fire and cheaper than Apple\'s iPad. The release, seen by many analysts, is a strong competing move in the U.S.\'s e-book market and bookstore industry, especially to its main competitor, Amazon.com. Its stake in the e-book market is estimated at about 27 percent of the total. This move is to show the company\'s ambition to enter a larger market.